Initial OpenECOMP Demo commit

[demo.git] / vnfs / VES / code / evel_library / double_list.h

diff --git a/vnfs/VES/code/evel_library/double_list.h b/vnfs/VES/code/evel_library/double_list.h
new file mode 100644 (file)
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+++ b/vnfs/VES/code/evel_library/double_list.h
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+#ifndef DOUBLE_LIST_INCLUDED
+#define DOUBLE_LIST_INCLUDED
+
+/**************************************************************************//**
+ * @file
+ * A simple double-linked list.
+ *
+ * @note  No thread protection so you will need to use appropriate
+ * synchronization if use spans multiple threads.
+ *
+ * License
+ * -------
+ *
+ * Copyright(c) <2016>, AT&T Intellectual Property.  All other rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:  This product includes
+ *    software developed by the AT&T.
+ * 4. Neither the name of AT&T nor the names of its contributors may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AT&T INTELLECTUAL PROPERTY ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AT&T INTELLECTUAL PROPERTY BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*****************************************************************************/
+
+typedef struct dlist_item
+{
+  struct dlist_item * previous;
+  struct dlist_item * next;
+  void * item;
+} DLIST_ITEM;
+
+/**************************************************************************//**
+ * Double-linked list structure
+ *****************************************************************************/
+typedef struct dlist
+{
+  DLIST_ITEM * head;
+  DLIST_ITEM * tail;
+} DLIST;
+
+
+void dlist_initialize(DLIST * list);
+void * dlist_pop_last(DLIST * list);
+void dlist_push_first(DLIST * list, void * item);
+void dlist_push_last(DLIST * list, void * item);
+DLIST_ITEM * dlist_get_first(DLIST * list);
+DLIST_ITEM * dlist_get_last(DLIST * list);
+DLIST_ITEM * dlist_get_next(DLIST_ITEM * item);
+int dlist_is_empty(DLIST * list);
+int dlist_count(DLIST * list);
+
+#endif